Flexible tube coupling



March 29, 1938.

FLEXIBLE TUBE COUPLLNG Filed March 7, 1936 l Il INVENTOR Sb/6e uarn asc/ze//f "whims js. csuARNAscHz-:LLI 2,112,238

2 A collar I2 and the coupling member Il is also moved forward to clamp the sheath between the scribed, it will be understood that the inventionV coupling member and the outer conical surface Ilot: the collar. '111e threaded member Il is then threaded on the coupling member I8 and l hose, thus forming a firm and secure abutment to hold the hose during the end thereof.

The construction above described will form a secure, tight, leak-prooi joint at the end of the hose and the seat or joint at the end is formed compression oi' the lduring the operation of the coupling thereon.

No further tools cr apparatus is necessary. Furthermore, should it be desired to obtain -a swiveling action between the ends of the coupling, the coupling member I8 may-be loosened and the sleeve 2l can be rotated therein.

Although one specific embodiment of the invention has been particularly shown and deis capable of modiilcation and that changes in theconstmctionandinthent ofthe various cooperating parts may be made without departing from the spirit or scope or the invention, as in the following claim. What I claim is: l

In combination, a flexible corrugated metallic tube, a split collar. having a corrugated inner surface adapted to engage and receive the cor- Vrugations on the tube and'having a tapered outer surface, the internal diameter oi'lthe split collar being less than thel outside diameter of the hose when the split collar is closed, a coupling comprislng a member having a conical seat having an outer diameter at the end thereof dimensioned to receive and enter the bore of the tube and having a flange at the large end of the conical seat adapted to form an abutment for the end of thel tube, a second coupling member having a conical inner surface arranged to wedgingly receive the conical outer surface of the split eollarto prevent expansion of the collar and longitudinal movement of the hose in the collar, and means engaging said two coupling members to draw said membersV toward each' STEPHEN GUARNAS'CHEILI. 

